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Skip to Search Results- 34Liu, Qingxia (Chemical and Materials Engineering)
- 10Xu, Zhenghe (Chemical and Materials Engineering)
- 10Zeng, Hongbo (Chemical and Materials Engineering)
- 1Choi, Phillip (Chemical and Materials Engineering)
- 1Gupta, Rajender (Chemical and Materials Engineering)
- 1Long, Jun (Syncrude)
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Understanding zinc sulfide activation mechanism and impact of calcium sulfate in sphalerite flotation
DownloadSpring 2012
Quartz crystal microbalance with dissipation (QCM-D) was used to study the zinc sulfide activation with silver, copper and lead. The interactions between calcium sulfate and minerals and gypsum nucleation on functional surfaces were investigated using a QCM-D, surface forces apparatus (SFA), and...
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Spring 2017
Interactions mechanisms of deformable air bubbles and liquid droplets play critical roles in many established and modern industrial processes. Understanding the interaction mechanisms of oil droplets and air bubbles is of fundamental and practical importance to solve many challenging issues,...
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Spring 2013
Solvents are ubiquitously used in oil sands extraction industry to enhance the separation of bitumen froth. With developing new technologies such as non-aqueous bitumen extraction, the need to track solvent interactions with oil sands components throughout the extraction process and to identify...
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Theoretical study on reactivity of different sulfide collectors and their binding affinity toward Cu(II), Zn(II) and Pb(II) ions.
DownloadSpring 2016
Collectors are one of the most important ingredients of froth flotation in mineral processing, as they selectively render the desired minerals more hydrophobic than others. Current crop of sulfide collectors interact with almost all sulfide minerals. This necessitates the use of complicated...
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Fall 2020
This study focuses on the synthesis process of gelatin-shelled microbubbles and their characterization. A new method to synthesize gelatin-shelled microbubbles was described. Briefly, Traut’s reagent was used to thiolate gelatin molecules; then sonication forces were placed at the water-air...
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Synergistic Role of Sodium Hydroxide and Sodium Citrate on Bitumen Slime Coating in Process Water
DownloadFall 2021
Sodium hydroxide (NaOH) is generally used as the primary processing aid in the water-based oil sands extraction for the recovery of bitumen. It was found by Syncrude Canada Ltd. that the combined use of sodium hydroxide and sodium citrate could effectively improve the bitumen recovery as compared...
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Surface Oxidation of Millerite and its Galvanic Interaction with Chalcopyrite in Collectorless Flotation
DownloadFall 2021
Surface analysis of millerite and chalcopyrite were performed to enhance the understanding of fundamental millerite flotation behaviour in single mineral and mixed mineral conditions. By studying the mineral surfaces without collector addition, the ambiguity about the origin of the formed...
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Fall 2018
Underground coal gasification (UCG) is a process of ‘in-situ’ conversion of coal into gaseous products with usable heating value through combustion with oxygen/air and gasification with steam. From the economic and environmental point of view, UCG is a highly promising clean energy technology...
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Study of Thin Liquid Film Drainage and Interaction Forces in Organic Solvent for Liquid/Solid and Liquid/Liquid Interactions Using Dynamic Force Apparatus (DFA)
DownloadFall 2021
Properties of thin liquid films between two approaching droplets or between a droplet and a solid surface are critical for emulsion stability and for mineral flotation. If the thin liquid film is stable, no coalescence occurs, while an unstable film will lead to rupture and coalescence or the...
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Fall 2018
Many tailings treatment technologies rely on the use of water-soluble polyacrylamides (PAM) to flocculate fine solids. However, PAM-induced flocs are often loosely-structured and retain significant volume of water due to the hydrophilicity of PAM and fine clays in oil sands fine tailings....